The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 1999
Filed:
Jan. 22, 1998
Harri Salo, Helsinki, FI;
Janesko Oy, Vantaa, FI;
Abstract
A method and apparatus for measuring sound velocity in a liquid, said method comprising the transmitting of a sound pulse or a group of sound pulses to the liquid to be measured and the measuring of the transit time of the sound pulse or the group of sound pulses in the liquid to be measured. To improve the accuracy of measurement, the sound pulse or the group of sound pulses is simultaneously transmitted with one and the same transmitter both to the liquid to be measured and to the reference material in which sound velocity is previously known. The sound pulse or the group of sound pulses arriving from the liquid to be measured and from the reference material is received and the time interval is measured with one and the same measuring means.